2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/89098A new cryptographic tool, anonymous quantum key technique, is introduced that leads to unconditionally secure key distribution and encryption schemes that can be readily implemented experimentally in a realistic environment. If quantum memory is available, the technique would have many features of public-key cryptography; an identification protocol that does not require a shared secret key is provided as an illustration. The possibility is also indicated for obtaining unconditionally secure quantum bit commitment protocols with this technique.11 pages; presented at the QCM&C 2000 (Capri, Italy)Quantum Physicstext